Collision tumor of the thyroid gland: Follicular carcinoma and papillary microcarcinoma
Awadia Salman Awadalla 1 * , Maryam Abdullah Al Saleem 1 , Areej Manssour Al Nemer 1 , Ayesha Ahmed 1 , Eiman Al Bisher 2 , Hassan M Al Bisher 3
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1 Department of Pathology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA2 Department of Medicine, King Fahd Hospital of the University, Dammam, SAUDI ARABIA3 Department of Surgery, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAUDI ARABIA* Corresponding Author


Collision tumor represents the proximal coexistence of two histologically distinct tumors. The combination of two different types of tumors in a single thyroid gland is extremely unusual. We reported a case of follicular carcinoma and papillary microcarcinoma occur independently as a primary tumor separated by a normal tissue in a 59- year- old Saudi female, presented at the clinic with goiter for two months duration without symptoms of thyroid hormonal disorders. This case is one of few cases to be reported as a combined follicular thyroid carcinoma and papillary thyroid carcinoma in English literature.


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Article Type: Case Report

ELECTRON J GEN MED, 2022, Volume 19, Issue 6, Article No: em411

Publication date: 29 Aug 2022

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